Corrosion Behavior of 316L Stainless Steel and Alloy 625 in Supercritical Water Oxidation for Coking Wastewater Treatment

摘要：

　　The corrosion behavior of 316L stainless steel and alloy 625 were deteced in superciritical water oxidation (SCWO) process for coking wastewater treatment.The operation conditions were 500 ℃, 25 MPa, oxygen ratio of 3.5 and the reaction time of 150 h.Surface morphologies of metal samples, oxide structure and compositions across the oxide thickness of the metal samples after SCWO were analyzed using SEM and ESD, and the corrosion rates for both samples were obtained.Pitting corrosion was found on the surface of 316L stainless steel with a corrosion rate of 0.334 mrn/a.While no remarkable corrosion was found on the surface of alloy 625, and the corrosion rote is 0.052 mm/a.

关键词： Corrosion Supercritical water oxidation 316L stainless steel Alloy 625 Coking wastewater

作者: Yuzhen Wang Shuzhong Wang Yang Guo Donghai Xu Xinying Tang Guangxin Yu Hang YU

作者单位: Xian Jiaotong University, Suzhou Academy, Suzhou, Jiangsu, 215123, China CNOOC New Energy Investment Co., Ltd., Beijing, 100016, China

会议类型: 国际会议

会议名称: 2013International Conference on Energy Engineering and Environmental Engineering(2013年能源工程与环境工程国际会议)(ICEEEE2013)

会议地点: 杭州

会议语种:英文

页码: 1037-1040

在线出版日期: 2013-01-18（万方平台首次上网日期，不代表论文的发表时间）